BIGTOP-4069: fix the phoenix smoketest bug in openeuler (#1244)

diff --git a/bigtop-deploy/puppet/manifests/python.pp b/bigtop-deploy/puppet/manifests/python.pp
index 65c87bf..8ddafcf 100644
--- a/bigtop-deploy/puppet/manifests/python.pp
+++ b/bigtop-deploy/puppet/manifests/python.pp
@@ -20,4 +20,10 @@
           target => '/usr/bin/python2',
         }
     }
+    
+    if ($operatingsystem == 'openEuler') {
+        package { 'python3-unversioned-command':
+          ensure => 'present'
+        }
+    }
 }